Block board

Abstract

The utility model relates to a core-board and belongs to the technical field of board processing. A core-board comprises a core layer board, a first veneer layer and a second veneer layer, wherein the first veneer layer and the second veneer layer cover the two surfaces of the core layer board respectively. The first veneer layer and the second veneer layer are both bonded with the core layer plate; the core layer plate is formed by transversely splicing a plurality of battens; the batten is formed by longitudinally splicing a plurality of battens; the adjacent battens are connected through first lock catches, and the adjacent battens are connected through second lock catches. The battens are adopted to form the battens, then the battens are spliced to form the core plate, the battens and the battens are of lock catch structures, so that the bending strength in the longitudinal direction and the transverse direction is high, the battens are composed of the battens, the stress accumulation amount is small, and the core plate cannot generate torsional deformation.

Description

Technical Field

[0001] The utility model relates to a blockboard and belongs to the technical field of plate processing. Background Art

[0002] As a solid wood decorative building material, blockboard has good screw holding force, and has the characteristics of being strong, sound-absorbing, and heat-insulating. It also has a low moisture content, is easy to process, and has a wide range of uses. It is mainly used as an inner lining structural board and has been widely used in home decoration and is deeply loved by consumers.

[0003] However, the core of traditional blockboards is made by gluing the strips together, which is prone to scattering and breaking during the production process, affecting the production efficiency and pass rate of the product. At the same time, the product's bending strength is also very low.

[0004] For example, the utility model patent with the authorization announcement number CN 210999168U discloses a core board with impregnated film paper facing blockboard, which includes an upper veneer layer, a core board and a lower veneer layer bonded to each other from top to bottom; the core board is made of multiple core strips bonded together, each core strip is formed by hot pressing after assembling no less than 2 layers of veneers, and the superposition direction of the veneers is located in the width direction of the core strip, and the along-grain direction of the veneers is located in the length direction of the core strip. This scheme makes the core board by changing the placement direction of the veneers in the core strip, so that the along-grain direction of the veneers is staggered with the deformation direction of the core strip, thereby changing the internal stress in the core board, which can effectively prevent the impregnated film paper facing blockboard from warping and deformation along the along-grain direction of the wood board due to long-term use. However, this board requires a large amount of glue, such as first applying glue and hot pressing multiple layers of rotary cut veneers into wooden squares, then sawing the wooden squares into core strips, and finally applying glue on both sides of the core strips to bond with other core strips to finally make the core board. It can be seen that the manufacturing process of the board is complicated. In addition to gluing, the process of forming the core strip also requires hot pressing, cutting and other equipment. In addition, in the process of forming the core board, adjacent core strips rely on bonding, and the bending strength in this direction is low.

[0005] The utility model patent with the authorization announcement number CN 214687028U discloses a blockboard with a mortise and tenon structure, which includes a core layer, the top and bottom surfaces of the core layer are covered with a first middle layer and a second middle layer, the surfaces of the first middle layer and the second middle layer are covered with a first natural veneer layer and a second natural veneer layer, respectively, wherein the core layer includes a plurality of slats arranged from left to right, the plurality of slats are divided into end slats at both ends and middle slats at the middle of the end slats, and adjacent slats are mutually clamped by a mortise and tenon structure. This scheme improves the transverse bending strength of the board through the mortise and tenon structure. However, in the length direction of the slats, that is, in the direction of the grain, since there is stress between any adjacent slats, and the length of the slats is the same as the whole board, the stress accumulation is large, and after being spliced ​​into a large-format core board, the core board is easily subjected to torsional bending deformation. Utility Model Content

[0006] The utility model aims to solve the above problems, thereby providing a blockboard. The blockboard of the utility model adopts strips to form slats, and then the slats are spliced ​​into a core board, and the slats and strips are both locked. Therefore, the bending strength in both the longitudinal and transverse directions is high, and the slats are composed of strips, the stress accumulation is small, and the core board will not produce torsional deformation.

[0007] The technical solution of the utility model to solve the above problems is as follows:

[0008] A blockboard comprises a core board, a first veneer layer and a second veneer layer respectively covering two surfaces of the core board; the first veneer layer and the second veneer layer are both bonded to the core board; the core board is formed by a plurality of slats spliced ​​horizontally; the slats are formed by a plurality of strips spliced ​​vertically; adjacent slats are connected by a first lock, and adjacent strips are connected by a second lock.

[0009] As a preferred embodiment of the above technical solution, the first lock buckle and the second lock buckle have the same structure and face in opposite directions.

[0010] As a preferred embodiment of the above technical solution, the joints of adjacent slats are staggered.

[0011] As a preferred embodiment of the above technical solution, the first lock includes a tenon arranged on a first side of the long side of the slat and a tenon arranged on a second side of the long side of the slat; adjacent slats are buckled through the tenon and the tenon; the second lock includes a tenon arranged on a first side of the short side of the strip and a tenon arranged on a second side of the short side of the strip; adjacent strips are buckled through the tenon and the tenon.

[0012] As a preferred embodiment of the above technical solution, the tenon includes a tenon connection portion formed by a thickness layer of the strip starting from the first surface extending horizontally toward the outside, a tenon body extending toward the direction of the starting surface opposite to the tenon connection portion, and a tenon head formed by the tenon body extending horizontally toward the outside; the tenon groove is a structure matching the shape of the tenon, including a groove bottom formed by a thickness layer starting from the second surface extending horizontally toward the outside, and a groove side formed by the edge of the strip.

[0013] As a preferred embodiment of the above technical solution, the inner end of the tenon body protrudes from the tenon connecting portion and forms a limiting portion; the outer end of the groove bottom protrudes from the groove bottom and forms a second groove edge portion; the inner side contour of the second groove edge portion is structurally compatible with the limiting portion.

[0014] As a preferred embodiment of the above technical solution, the contour of the limiting portion is an S-shaped curved surface.

[0015] As a preferred embodiment of the above technical solution, the surface of the tenon body that matches the bottom of the groove is a curved surface.

[0016] As a preferred embodiment of the above technical solution, a first rounded corner is formed at the transition connection between the outer end surface of the tenon connection part and the first surface of the strip board; a first sunken portion is formed at the transition connection between the upper end surface of the tenon body and the outer end surface of the tenon connection part; and a second recessed portion is formed at the corresponding portion of the groove edge and the outer end surface of the tenon connection part.

[0017] As a preferred embodiment of the above technical solution, a second fillet is formed at the transition connection between the outer end surface of the tenon body and the curved surface.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model adopts strips to form slats, and then splices the slats into core boards. The slats and strips are all locked. Therefore, the bending strength in both longitudinal and transverse directions is high. The slats are composed of strips, the stress accumulation is small, and the core board will not produce torsional deformation;

[0020] 2. The lock buckles arranged between adjacent slats and the lock buckles arranged between adjacent strip boards of the utility model have the same structure and are in opposite directions, so that the bending strength of the utility model is further improved;

[0021] 3. The utility model has made a new design for the lock structure, which includes a combination of various matching connections. For example, the contour of the limiting part is an S-shaped curved surface, and the inner contour of the second groove edge is matched with the limiting part; the surface of the tenon body matching with the bottom of the groove is a curved surface; and the design of the first fillet, the second fillet, the first sunken part, the second sunken part, etc., not only facilitates the insertion of the tenon into the tenon groove, but also can form a limit after insertion, which has the advantages of convenient connection and high connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the core plate structure of the utility model;

[0024] Figure 3 It is a structural diagram of the strip board of the utility model;

[0025] Figure 4 This is a structural diagram of the lock of the utility model;

[0026] Figure 5 yes Figure 4 A partial enlarged view of

[0027] Figure 6 It is a schematic diagram of the lock fitting of the utility model;

[0028] In the figure, 1-core board, 2-first veneer layer, 3-second veneer layer, 11-slat board, 11-1-slat board joint;

[0029] 61-first lock buckle, 62-second lock buckle;

[0030] 6-1-tenon tooth, 6-2-tenon groove;

[0031] 6-1-1-tenon connection part, 6-1-2-tenon body, 6-1-3-tenon;

[0032] 6-2-1 - bottom of the groove, 6-2-2 - edge of the groove, 6-2-3 - edge of the second groove;

[0033] 6-1-1-1-First round corner,

[0034] 6-1-2-1-limiting portion, 6-1-2-2-curved surface, 6-1-2-3-first sunken portion, 6-1-2-4-second rounded corner;

[0035] 6-2-2-1-The second depression. DETAILED DESCRIPTION

[0036] The present invention is further explained below in conjunction with the accompanying drawings.

[0037] This specific implementation is only an explanation of the present invention, not a limitation of the present invention. Any changes made by those skilled in the art after reading the specification of the present invention will be protected by the patent law as long as they are within the scope of the claims.

[0038] A blockboard, such as Figure 1 As shown, it includes a core board 1, a first veneer layer 2 and a second veneer layer 3 respectively covering two surfaces of the core board; the first veneer layer 2 and the second veneer layer 3 are both bonded to the core board 1.

[0039] like Figure 2 As shown, the core layer board 1 is formed by horizontally splicing a plurality of slats; and the slats are formed by vertically splicing a plurality of strips 11. The strip splicing seams 11-1 of adjacent strips are staggered.

[0040] like Figure 3 As shown, adjacent slats are connected by first lock buckles 61, and adjacent slats are connected by second lock buckles 62. Moreover, the first lock buckles 61 and the second lock buckles 62 have the same structure and face in opposite directions.

[0041] Since the first lock buckle 61 and the second lock buckle 62 have the same structure, only the specific structure of the first lock buckle is described below.

[0042] like Figures 4 and 5 As shown, the first lock buckle 61 includes a tenon 6-1 arranged on the first side of the long side of the slat and a tenon groove 6-2 arranged on the second side of the long side of the slat; adjacent slats are buckled through the tenon 6-1 and the tenon groove 6-2; the second lock buckle 62 includes a tenon 6-1 arranged on the first side of the short side of the strip board and a tenon groove 6-2 arranged on the second side of the short side of the strip board; adjacent strip boards 11 are buckled through the tenon 6-1 and the tenon groove 6-2. The tenon 6-1 comprises a tenon connection part 6-1-1 formed by a thickness layer of the strip 11 starting from the first surface extending horizontally outward, a tenon body 6-1-2 extending in a direction opposite to the starting surface of the tenon connection part, and a tenon head 6-1-3 formed by the tenon body 6-1-2 extending horizontally outward; the tenon groove 6-2 is a structure matching the shape of the tenon 6-1, comprising a groove bottom 6-2-1 formed by a thickness layer starting from the second surface extending horizontally outward, and a groove edge 6-2-2 formed by the edge of the strip 11. The inner end of the tenon body 6-1-2 protrudes from the tenon connection part 6-1-1 and forms a limiting part 6-1-2-1; the outer end of the groove bottom 6-2-1 protrudes from the groove bottom 6-2-1 and forms a second groove edge 6-2-3; the inner contour of the second groove edge 6-2-3 is structurally compatible with the limiting part 6-1-2-1.

[0043] like Figure 5 As shown, the contour of the limiting portion 6-1-2-1 is an S-shaped curved surface; the surface of the tenon body 6-1-2 that matches the groove bottom 6-2-1 is a curved surface 6-1-2-2. The transition connection between the outer end surface of the tenon connecting portion 6-1-1 and the first surface of the strip 11 forms a first fillet 6-1-1-1; the transition connection between the upper end surface of the tenon body 6-1-2 and the outer end surface of the tenon connecting portion 6-1-1 forms a first sunken portion 6-1-2-3; the groove edge 6-2-2 and the corresponding portion of the outer end surface of the tenon connecting portion 6-1-1 form a second recessed portion 6-2-2-1. The transition connection between the outer end surface of the tenon body 6-1-2 and the curved surface 6-1-2-2 forms a second fillet 6-1-2-4.

[0044] When the tenon 6-1 is inserted into the tenon groove 6-2, the tenon 6-1 is first slightly tilted, and then the tenon 6-1-2-4 is inserted into the corresponding position of the groove edge 6-2-2. Figure 6 As shown in A, at this time, the first fillet 6-1-1-1 is matched with the second recessed portion 6-2-2-1, and the first fillet 6-1-1-1 is slightly convex toward the second recessed portion 6-2-2-1; at the same time, the second fillet 6-1-2-4 is formed at the transition connection between the outer end surface of the tenon body 6-1-2 and the curved surface 6-1-2-2; therefore, the tenon 6-1 can be gradually turned downward and gradually laid flat based on the previous inclination. In this process, the limiting portion 6-1-2-1 with an S-shaped curved surface has a certain degree of conflict with the inner side of the second groove edge 6-2-3; at this time, a certain force needs to be provided to make the limiting portion 6-1-2-1 embedded in the second groove edge 6-2-3; as shown in FIG. Figure 6 As shown in B, the tenon 6-1 is finally inserted into the tenon groove 6-2.

Claims

1. A blockboard, comprising a core board (1), a first veneer layer (2) and a second veneer layer (3) respectively covering two surfaces of the core board; the first veneer layer (2) and the second veneer layer (3) are both bonded to the core board (1); characterized in that: The core layer board is formed by a plurality of slats spliced ​​horizontally; the slats are formed by a plurality of strip boards (11) spliced ​​longitudinally; adjacent slats are connected via a first lock buckle (61), and adjacent strip boards (11) are connected via a second lock buckle (62).

2. A blockboard according to claim 1, characterized in that: The first lock buckle (61) and the second lock buckle (62) have the same structure and face in opposite directions.

3. A blockboard according to claim 2, characterized in that: The strip joints (11-1) of adjacent strips are arranged in a staggered manner.

4. A blockboard according to claim 1, characterized in that: The first lock buckle (61) comprises a tenon (6-1) arranged on a first side of a long side of a slat and a tenon groove (6-2) arranged on a second side of the long side of the slat; adjacent slats are buckled via the tenon (6-1) and the tenon groove (6-2); the second lock buckle (62) comprises a tenon (6-1) arranged on a first side of a short side of the strip board and a tenon groove (6-2) arranged on a second side of the short side of the strip board; adjacent strip boards (11) are buckled via the tenon (6-1) and the tenon groove (6-2).

5. A blockboard according to claim 4, characterized in that: The tenon (6-1) comprises a tenon connection portion (6-1-1) formed by a thickness layer of the strip (11) extending horizontally outward from the first surface, a tenon body (6-1-2) extending in a direction opposite to the starting surface of the tenon connection portion, and a tenon head (6-1-3) formed by the tenon body (6-1-2) extending horizontally outward; the tenon groove (6-2) is a structure matching the shape of the tenon (6-1), comprising a groove bottom portion (6-2-1) formed by a thickness layer extending horizontally outward from the second surface, and a groove edge portion (6-2-2) formed by the edge portion of the strip (11).

6. A blockboard according to claim 5, characterized in that: The inner end of the tenon body (6-1-2) protrudes from the tenon connection portion (6-1-1) and forms a limiting portion (6-1-2-1); the outer end of the groove bottom (6-2-1) protrudes from the groove bottom (6-2-1) and forms a second groove edge portion (6-2-3); the inner side contour of the second groove edge portion (6-2-3) is structurally compatible with the limiting portion (6-1-2-1).

7. A blockboard according to claim 6, characterized in that: The contour of the limiting portion (6-1-2-1) is an S-shaped curved surface.

8. The blockboard according to claim 5, characterized in that: The surface of the tenon tooth body (6-1-2) that matches the groove bottom (6-2-1) is a curved surface (6-1-2-2).

9. The blockboard according to claim 5, characterized in that: A first fillet (6-1-1-1) is formed at a transitional connection between the outer end surface of the tenon connecting portion (6-1-1) and the first surface of the strip plate (11); a first recessed portion (6-1-2-3) is formed at a transitional connection between the upper end surface of the tenon body (6-1-2) and the outer end surface of the tenon connecting portion (6-1-1); and a second recessed portion (6-2-2-1) is formed at a corresponding portion of the groove edge portion (6-2-2) and the outer end surface of the tenon connecting portion (6-1-1).

10. A blockboard according to claim 8, characterized in that: A second fillet (6-1-2-4) is formed at a transitional connection between the outer end surface of the tenon tooth body (6-1-2) and the curved surface (6-1-2-2).

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